Learn Android Studio 3 with Kotlin: Efficient Android App Development

© Ted Hagos 2018

Ted HagosLearn Android Studio 3 with Kotlinhttps://doi.org/10.1007/978-1-4842-3907-0_18

18. Internal Storage

Ted Hagos¹ 

(1)

Manila, National Capital Region, Philippines

 

What we’ll cover:

• Introduction to file I/O of Android

• Internal vs External storage

• How to use internal storage

We learned how to use the preferences file in the previous chapter. SharedPreferences use a dictionary-like structure, you can save rows of data in key-value format; but you can only save basic types in it. When you need to work with file structures that are not limited to key-value pair and basic types, you can use the good ole file classes from Java I/O (input/output). That’s the topic of this chapter.

Overview of File Storage

When you need to work with video, ...